Which specie has unpaired electrons in antibonding molecular orbitals_______________? April 15, 2025 by admin A. O2+2 B. N2-2 C. B2 D. O2-2
For a given process the heat changes at constant pressure (qp) and at constant volume (qv) are related to each other as___________________? April 15, 2025 by admin A. qp = qv B. qp < qv C. qp > qv D. qp = qv / 2
Solubility product of AgCl is 2.0 x 10-10 mol2 dm-6. Maximum Concentration of Ag+1 ions in the solution is__________________? April 15, 2025 by admin A. 2.0 x 10-10 mol dm-3 B. 1.414 x 10-5 mol dm-3 C. 1.0 x 10-10 mol dm-3 D. 1.0 x 10-5 mol dm-3
Which of the following solution has the highest boiling point ? April 15, 2025 by admin A. 5.85% NaCl Solution B. 18.0 % glucose solution C. 6.0 % urea solution D. All have same boiling point
Which of the following can be used in laptops ? April 15, 2025 by admin A. Silver oxide battery B. Fuel cell C. Nickel cadmium cell D. Lead accumulator
Which is the unit of (K) rate constant for zero order reaction ? April 15, 2025 by admin A. s-1 B. mol dm-3 s-1 C. mol-1 dm3 s-1 D. mol-2 dm6 s-1
Which is carnalite________________? April 15, 2025 by admin A. KCI B. NaCI C. KCI MgCl2 6H2O D. Na2CO3. 10H2O
The most reactive allotropic form of phosphorus is________________? April 15, 2025 by admin A. White B. Redox potential C. Black D. Violet
Which molecule has the highest bond energy among the halogens_________________? April 15, 2025 by admin A. Fluorine B. Chlorine C. Iodine D. Bromine
The most paramagnetic element is____________________? April 15, 2025 by admin A. Iron B. Cobalt C. Chromium D. Manganese
